/**********************************************************************
  Filename    : Camera Web Server
  Description : The camera images captured by the ESP32S3 are displayed on the web page.
  Auther      : www.freenove.com
  Modification: 2022/10/31
**********************************************************************/
#include <Arduino.h>
#include "esp_camera.h"
#include <WiFi.h>

// ===================
// Select camera model
// ===================
// #define CAMERA_MODEL_WROVER_KIT // Has PSRAM
// #define CAMERA_MODEL_ESP_EYE // Has PSRAM
#define CAMERA_MODEL_ESP32S3_EYE // Has PSRAM
// #define CAMERA_MODEL_M5STACK_PSRAM // Has PSRAM
// #define CAMERA_MODEL_M5STACK_V2_PSRAM // M5Camera version B Has PSRAM
// #define CAMERA_MODEL_M5STACK_WIDE // Has PSRAM
// #define CAMERA_MODEL_M5STACK_ESP32CAM // No PSRAM
// #define CAMERA_MODEL_M5STACK_UNITCAM // No PSRAM
// #define CAMERA_MODEL_AI_THINKER // Has PSRAM
// #define CAMERA_MODEL_TTGO_T_JOURNAL // No PSRAM
//  ** Espressif Internal Boards **
// #define CAMERA_MODEL_ESP32_CAM_BOARD
// #define CAMERA_MODEL_ESP32S2_CAM_BOARD
// #define CAMERA_MODEL_ESP32S3_CAM_LCD

#include "camera_pins.h"

// ===========================
// Enter your WiFi credentials
// ===========================
// const char* ssid     = "TP-LINK_D68D";
// const char* password = "lfx13530075549";

const char *ssid = "HUAWEI-CS1V7D";      // Change this to your WiFi SSID
const char *password = "yong10130801.."; // Change this to your WiFi password

void startCameraServer();

void setup()
{
  Serial.begin(115200);
  Serial.setDebugOutput(true);
  Serial.println();

  camera_config_t config;
  config.ledc_channel = LEDC_CHANNEL_0;
  config.ledc_timer = LEDC_TIMER_0;
  config.pin_d0 = Y2_GPIO_NUM;
  config.pin_d1 = Y3_GPIO_NUM;
  config.pin_d2 = Y4_GPIO_NUM;
  config.pin_d3 = Y5_GPIO_NUM;
  config.pin_d4 = Y6_GPIO_NUM;
  config.pin_d5 = Y7_GPIO_NUM;
  config.pin_d6 = Y8_GPIO_NUM;
  config.pin_d7 = Y9_GPIO_NUM;
  config.pin_xclk = XCLK_GPIO_NUM;
  config.pin_pclk = PCLK_GPIO_NUM;
  config.pin_vsync = VSYNC_GPIO_NUM;
  config.pin_href = HREF_GPIO_NUM;
  config.pin_sscb_sda = SIOD_GPIO_NUM;
  config.pin_sscb_scl = SIOC_GPIO_NUM;
  config.pin_pwdn = PWDN_GPIO_NUM;
  config.pin_reset = RESET_GPIO_NUM;
  config.xclk_freq_hz = 20000000;
  config.frame_size = FRAMESIZE_240X240;
  config.pixel_format = PIXFORMAT_JPEG; // for streaming
  config.grab_mode = CAMERA_GRAB_WHEN_EMPTY;
  config.fb_location = CAMERA_FB_IN_PSRAM;
  config.jpeg_quality = 6;
  config.fb_count = 1;

  // if PSRAM IC present, init with UXGA resolution and higher JPEG quality
  // for larger pre-allocated frame buffer.
  if (psramFound())
  {
    config.jpeg_quality = 10;
    config.fb_count = 2;
    config.grab_mode = CAMERA_GRAB_LATEST;
  }
  else
  {
    // Limit the frame size when PSRAM is not available
    config.frame_size = FRAMESIZE_SVGA;
    config.fb_location = CAMERA_FB_IN_DRAM;
  }

  // camera init
  esp_err_t err = esp_camera_init(&config);
  if (err != ESP_OK)
  {
    Serial.printf("Camera init failed with error 0x%x", err);
    return;
  }

  sensor_t *s = esp_camera_sensor_get();
  // initial sensors are flipped vertically and colors are a bit saturated
  s->set_vflip(s, 1);      // flip it back
  s->set_brightness(s, 1); // up the brightness just a bit
  s->set_saturation(s, 0); // lower the saturation

  WiFi.begin(ssid, password);
  WiFi.setSleep(false);

  while (WiFi.status() != WL_CONNECTED)
  {
    delay(500);
    Serial.print(".");
  }
  Serial.println("");
  Serial.println("WiFi connected");

  startCameraServer();

  Serial.print("Camera Ready! Use 'http://");
  Serial.print(WiFi.localIP());
  Serial.println("' to connect");
}

void loop()
{
  // Do nothing. Everything is done in another task by the web server
  delay(10000);
}
